数据显示,2017上半年,国家电网完成固定资产投资2340亿,其中,电网投资2260亿元,同比增长7.6%,城市供电可靠率接近百分百,达到99.954%。在《配电网建设改造行动计划(2015—2020年》(以下简称《行动计划》)中指出,到2020年中心城市(区)供电可靠率将达到99.99%,显然,国家电网距离城市供电可靠率的目标近在咫尺。“十三五”是城市配电网快速发展的重要时期,但国内 Data show that in the first half of 2017, SGCC invested 234 billion fixed assets, of which the power grid investment was 226 billion yuan, an increase of 7.6% over the same period of last year. The urban power supply reliability rate was close to 100%, reaching 99.954%. In the “Action Plan of Power Distribution Network Construction and Renovation (2015-2020)” (hereinafter referred to as “Action Plan”), it is pointed out that the reliability of power supply in central cities (districts) will reach 99.99% by 2020. Obviously, the national grid is reliable Rate of the target in close proximity. “Thirteen Five ” is an important period of rapid development of urban distribution network, but the domestic